- Author: Konrad Mathesius
Published on: October 1, 2023
Summary Review
Results from this year's Italian ryegrass (IR) herbicide trials helped quantify differences in herbicide resistance among IR populations within the southern Sacramento Valley. The trial took place in Bird's Landing, CA (near Rio Vista), and was replicated farther north in Esparto, CA.
- Trials from this year suggest that Osprey-resistant IR populations often associated with the area around Dixon, CA could extend at least as far south as Bird's Landing with only 26% control of IR by Osprey in the trial site.
- The Osprey-resistant population appears to also be moderately resistant to Simplicity, another herbicide in the same chemical...
Tags: agronomy (7), ALS inhibitors (1), axial (2), herbicide resistance (95), Italian ryegrass (8), osprey (2), simplicity (2), small grains (1), wheat (6)
Focus Area Tags: Agriculture, Pest Management
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